Track 06 : Formerly, a berth for horse-drawn fire apparatus in a fire station; the term came from the steel rails used to guide horse-drawn apparatus into the fire station
Ralph W. Burklin & Robert G. Purington, Fire Terms: A Guide to Their Meaning and Use, National Protection Association, Boston, MA 1980 USA. (Guide: Meaning and Use, Nat Prot Association Fr Srvc - Amer) {457}